The correct answers are not predefined. There is no concensus in solving such senseless captchas, they are not qualified and thus excluded from the validation score. https://idena.io/?view=faq#faq-flip-creation-4




The time between validations is a function of the network size. The bigger the network the less frequent validations. Will a validation once in three months be too much? Some people will be always more motivated than others to spend their time validating themselves and mining. Participants' motivation will also grow with the growth of the Idena coin valuation.

No, you don't have to watch ads to mine the coins.
Watching ads is the possible way to bring demand for the coin into the Sybil protected network.


Unfortunately it might not work. There is no way to prove the ads consumtion without establishing a trust. People may click ads without intention to consume it. Advertizer may also decline to pay for the ads consumption.

Let me know if invitation code is needed

Invitation code sent. Please check your PM.
Invitation code itself doesn’t make your node unique. It allows you to take part in the online validation party.
If you manage to solve flips in time your node becomes validated as unique.

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Congrats!!


Bitcoin has a strong economic incentive to concentrate mining in the areas with cheap electricity. This makes other players leave.
Essentially there is no equal access to mining. The fact is the mining is the closed club both for PoW and PoS.

In contrast PoP allows for the equal access to minining.
Nothing else is needed to prove your humanness and uniqness.

You're right, there is no way to fight against fabric halls in China. But good news is the bad actors can only grow extensively. They have to coordinate more and more workers at the same place at the same time. Coordination costs might grow nonlineral.


Crypto UBI is one of the possible use cases for Idena since the list of validated participants is shared on the blockchain.
Any centralized service can use it for its purposes.

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Idena democritizes mining: any person on the planet (who able to solve flips) can mine the coins.

But what is the economy behind the coin?

Consider the use case of Sybil-protected maketing on the blockchain
1. Assume that Idena participants voluntarily agree to consume ads published on the blockchain by an advertiser.
2. However such an advertiser has to burn coins in order to reach a certain group of users attention.
3. Burnt coins are removed from the total supply. Thus multiple advertisers competing with each others will always have a shortage of coins.
4. Due to that assumption the newly minted coins which are equaly distributed amoung the people and can be sold to advertisers.

Did you try to use lowpower parameter to run the node? This should help for you:
https://idena.io/?view=guide#guide-issues-1


You can close the wallet if you don't want to mine the coins all the time.
You need to appear online at the certain time and solve 5 flips in less than 2 minutes to validate yourself.
Just make sure your node is fully synchronized right before the validation.


No, unfortunately that's not enough. The invitation itself can not guarantee that one person has only one address.
If someone can send you multiple invitations then you can have multiple accounts. Then you can issue more invitations for yourself and thus grow millions of fake accounts.

Just look at the facebook struggling with billions of fake accounts:
https://www.forbes.com/sites/niallmccarthy/2019/05/24/facebook-deleted-more-than-2-billion-fake-accounts-in-the-first-quarter-of-the-year-infographic/#7efd1f767e30


 

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Idena blockchain formalizes people so there might be use cases that we can not anticipate yet. But there are some issues that hopefully POP may address:
1. Fair voting and the governance. The hardest issue in the blockchain space is how to establish democratic decision making.
2. Concentration issue. There are 3 mining pools conrtol 51% of the Bitcoin hashrate. Bitcoin mining is concentrated in one area. 80% of the hashrate is located in China. Ethereum PoS will not change the game. The initial wealth of is in few hands. 70% of ETH was premined. 53% of ETH owned by 400 wallets.
3. Blockchain scalability issue. Running multiple shard-chains is not safe when the stake is concentrated.

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Validation is starting. Get ready!

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Validation report is available

85 identities are validated: https://scan.idena.io/validation?epoch=16

192 flips where created before the validation: https://scan.idena.io/validation?epoch=16#flips
- 180 flips are qualified
- 7 flips did not reach consensus about the right answer and were disqualified
- 5 flips reached a weak consensus about the right answer

Validation rewards paid to participants: https://scan.idena.io/rewards?epoch=16

Sorry, we don't release builds of Idena Client for the Linux yet.
In order to build the client from source code you'd need the following:
1. install npm
2. get the source code from the github release
3. npm install
4. npm run start


There are 51,840 DNA coins are minted per day maximum. 50% is mined while producing the blocks. The rest of the coins are minted during validation sessions. The coins are distributed between all validated participants.
https://idena.io/?view=faq#faq-economy-2

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Hopefully this will answer the question:
https://medium.com/idena/ai-resistant-captchas-are-they-really-possible-760ac5065bae

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Announcement
Please doublecheck the time of next validation in Idena app
If you had the clocks change to the winter time this weekend in your country then the validation time for you will be shifted for 1 hour

⏰The validation time is always fixed at 13:30 UTC
✅Idena app displays the proper validation time for your local time zone


Idena Node version 0.13.2 is available
Changes:
- Validation session critical bug fix (false late submission)
The update is highly recommended for the successful validation:
https://idena.io/?view=download

Individual must validate themself in order to mine coins.

The uniqueness of participants is proven by the fact that they must solve and provide the answers for flip-puzzles synchronously. A single person is not able to validate herself multiple times because of the very limited timeframe for the submission of the answers.

https://idena.io/?view=faq#faq-pop-1

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Please check PM

It depends on your computer and the network speed. You can see the synchronization progress in the Idena Client user interface. Did you downloaded it?


Yes you can move the full copy of the /datadir/ folder which is created in the same directory where the node is located.

Once you're successfully validated you can activate the mining mode for your address. Then your node has to stay online synchronized in order to mine coins.
Otherwise if your node comes offline for more than 1 hour penalties are charged. You can deactivate the mining mode at anytime and enjoy the validation rewards only.

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The validation session is finished.

Total 75 identities are validated. The validation report:
https://scan.idena.io/validation?epoch=15

Validation rewards paid:
https://scan.idena.io/rewards?epoch=15

Validation starts in 35 minutes

The slow disks might be loaded if you run the node for first time. It takes some to to synrchonize the blockchain data at the beginning.
You can see the if the node is synrchonized in the Idena Client user interface.


Many Idena participants are running their nodes on VPS. There were no issues with VPS performance until now.

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Yes, that's correct.

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The next validation party starts in one hour and a half.
Invitations can be requested here.

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Get ready! Validation starts in 30 minutes

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Staring now!

Validation starts in less than 4 hours

Make sure you have 'Wait for validation' status displayed in app.
Otherwise please submit 3 flips or activate the invitation code.

There are 58 mining nodes running at the moment out of the total 75 validated addresses:
https://scan.idena.io/#miners




That's fine for running the Idena node.

Idena blockchain formalizes people so there might be use cases that we can not anticipate yet. E.g. onchain marketing: Idena participants voluntarily agree to consume ads published by a valid address which burns coins. Then advertisers have to compete for burning more coins in order to reach a certain group of users attention. Burnt coins are removed from the total supply. This  means that all newly mined coins equaly distributed amoung the variety of people can be sold to advertisers who will have shortage of coins.

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I have edited the initial post, now it should be clearer. The next validation time is a function of the network size, it is determined by the algorithm when the validation process is over and the number of valdated participants are known. The next validation time is always displayed on the main website and app page. By the way, today is the validation day.

It’s correct though might seem weird. Every Idena user on a planet needs to appear online at the same time and solve 5 flips in less than 2 minutes in order to prove their uniqueness. Consider it as a global online party.

In order to mine, you have to prove you are a unique human during the validation session. Once your address is validated as a unique human, you can mine coins during the subsequent epoch. Mining requres neither stake nor mining hardware. It's based on the BFT consensus.

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No KYC. No personal data. No trusted verifiers. Proof of person is based on the Turing test running at the same time for all participants in the network.

Invitations are needed to minimize the probability of a Sybil attack.
https://idena.io/?view=invitation#

Idena is a strong bot protection: one person can not have multiple accounts, because the validation session starts at the same time globally. Useful for many projects that cannot be realized otherwise: true anonymous authentication, privacy-preserving Sybil-protected governance and fair voting for online communities and DAOs, global universal basic income initiatives, Sybil-protected marketing.

The current validation frequency is once in 4 days.

The person who invites you can terminate your identity only before your status is "Verfied", after the third validation it is no longer possible. This is done to prevent participants from buying and selling invitations and to encourage healthy network growth. When you are invited by your friend you will not be expelled.

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We mention that in the FAQ section:
https://idena.io/?view=faq#faq-validation-1


You need to run the node on your computer or laptop in order to produce blocks and vote for the block proposals.
https://idena.io/?view=technology

Yes, I contribute to the project.
Why not pow and pos? They both are based on capital. Larger players enjoy economy of scale and adopt anti-competitive practices. Smaller players vanish.

Is there any alternative basis that is not as concentrated as capital? It seems that human personhood is the most evenly distributed and scarce resource on Earth.

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The validations will be less often as the network grows. Will validating once in 3 month be too much work?

There is the first Proof-of-Person Blockchain. No money for stake or equipment needed, just an average laptop.
You can easily join mining of the first human-centric cryptocurrency at idena.io and share your opinion.

Where to start?
1. Visit the website idena.io to learn more about Idena.
2. Download and install the Idena Node and Idena Client executable files at  https://idena.io/?view=download or build them from source at https://github.com/idena-network.
3. Subscribe to the Idena Announcements channel at https://t.me/IdenaAnnouncements to follow updates.
4. Join the Idena Telegram chat https://t.me/IdenaNetworkPublic and follow the instructions in the pinned message.
5. Make sure your node is synchronized, and activate the invitation code. Check your identity status; it should be "Candidate". The invitation can not be activated in last 5 minutes before the validation.
6. Learn how to solve flips: read the article in our blog  https://medium.com/idena/how-to-prove-your-identity-anonymously-919bdfe5249a and test yourself https://flips.idena.io/?pass=idena.io

How to get validated?
1. Check the next validation time in the Idena app or at the website.
2. Your node must be fully synchronized before the session starts.
3. Your computer time must be synchronized with the internet time.
4. Solve the flips during the validation session. Be agile. The first 6 flips must be submitted in less than 2 minutes.

What's next?
1. Once your identity is validated, keep your node up and running in order to mine coins.
2. Learn how to create flips. Don't forget to create three fips  before the next validation in advance. Schedule your next validation.

We're exploring possibilities of running the node on a mobile